Internal-combustion engine.



LPRfiH.

INTERNAL COMBUSTION ENGINE.

APPLIGATION FILE D NOV. 23, 1912.

P mzentediApr 14, 1914.

' Inenfor 'Kqrl Fmllh a specification.

rected to the accompanying description and the cranks by the rods (3 nnirnn @TATES rarnnr FRIIH, F WEINHEIM, GERMANY, ASSIGI TOR T0 GENERAL ELECTRIC COMPANY,

' A CORPORATION OF NEW YORK.

INTERNAL-COMBUSTION ENGINE.

accents.

To aZZ whom it may concern:

Be it known that I, KARL FniiH, sub ect of the King of Bavaria, residing at VVe1nheini, Germany, have invented certain new and useful Improvements in Internal-Combastion Engines, of which the following is The present invention relates to internal combustion engines and has for its object to improve their construction, particular re"erence being-made to means for operatthe compressor and fuel valves. i For a consideration of what I believe to be novel and my invention, attention is diclainis appended thereto.

. In the accompanying drawing, which illustrates one of the embodiments of my invention, Figure 1 is a view in elevation with certain of the parts broken away to show the air compressor; Fig. 2 is a plan view of the engine; Fig. 3 is a section taken on line A-A of Fig. 1, and Fig. dis a section taken on line BB of Fig. 1.

1 indicates the base of the engine which is provided with bearings 2 to support the main crank shaft 3. Rising from the base are columns 4 that support the air receiver 5. Thisreceiver is oblong in form and acts as a support for the cylinders 6 of'which as many may be provided as are desired, two being shown in the present instance. In each cylinder are two oppositely moving pistons, the lower ones being connected to and the upper ones by the side rods 7. In the right hand end of the receiver is an air compressor comprising a cylinder 7 and a piston 8, the latter being connected by the rod 9 with a. crank on the'main shaft. The air compressor is of the double acting type and is provided with one or more valves for controlling its action. As shown it is provided with one valve 10 that has two sets of controlling ports and passages, one set being at the top and the other at the bottom. This valve is mounted in a casing 10 formed in the receiver and is of the rotary type. In order to continuously rotate the valve a shaft 11 having projections 11 is provided that'has a spiral gear 12 on its lower end which meshes with a similar gear 13 carried by the main shaft. The rotary valve is made hollow and the shaft 11 passes through fipecification of Letters Patent. Application filed November 23, 1912. Serial No. 733,019.

it rather loosely so that the shaft and valve l Patented Apr. Ml,

have the capacity for lateral adjustment. This arrangement permits the alve to turn freely in its casing and the s iaft to turn freely even though the axes of the two parts do not exactly coincide. reason of the form of driving connection be tween the shaft and the valve the troubles incident to the lack of alinement are obviated.

The ports and passages between the valve and the compressor cylinder are the same top and bottom so a description of one set will be sufficient. Assuming that the cornpressor piston S is moving upwardly as in-- dicated by the arrow, air is being courpressed in the cylinder space above it the air passes therefrom at the proper time through the ports 14: best shown in Fig. 3. This port communicates with a passage 15 formed in the valve proper and when the valve is in the position shown in Fig. 3 air is free to pass from the upperend of the cylinder through the port 14, passage 15, and port 16 into the receiver chamber 17 from which it flows to the scavenging ports 18 of each working cylinder 6, when said ports are uncovered by one of its pistons. Air is admitted to the compressor through the port 19, Fig. I, which port is formed in a part of the valve casing that rises above the top surface of the receiver. The valve is provided with a passage 20 that is adapted at predetermined times to register with the port 19 and convey air therefrom to the port- 21 in the casing, said port communi- :ating with the cylinder of the compressor. It will thus be seen that as the piston of the compressor moves up and down it forces air into the receiver where it is\available for use in scavenging the cylinders.

The engine shown is of the two cycle constant pressure type wherein compressed air in the combustion space is relied on to ignite the fuel injected by the injectors, or pulverizers 25, each of which contains a fuel valve actuated by the part 26. The fuel valves, through suitable intermediate mechanism, are actuated by the cam shaft 27 which extends parallel with the top of the receiver and is supported by brackets 28 mounted I thereon. In order to simplify the engine and reduce the number of parts, I have so constructed and arranged the various elen'ients that the valve shaft 11 can be utilized not only to drive the compressor valve but In other words by ill-K the fuel combination of a working cylinder, a piston,

, the right hand end also the cam shaft 27. To this end the valve shaft is provided with a spiral gear 29 that meshes with a similar gear 30 mounted on of the cam shaft 27. The between these twd shafts'is such that valves will be open at the proper time. Owing to the-character of the connection between the shaft 11, and the valve 10, the shafts 11 and 27 can be properly alined gearing and the valve will automatically aline itself,

in its casing, a feature of great practical advantage.

By utilizing the valve shaft 11 as a connecting shaft between the main shaft and the cam shaft 27 I am able to dispense with a special driving shaft for the compressor. p valve.

Furthermore, this arrangement results in a saving in space, and hence the'engine can be made more compact.

I have shown the compressor as being provided with only one controllin valve but if the volume of air to be handle is relatively large or for any reason it is desirable I may employ two such valves placing the other one on the opposite side of the center of the engine.

In accordance with the provisions of the patent statutes, I have described the principle of operation of my invention, together with the apparatus which I now consider to represent the best embodiment thereof; but I desire to have it understood that the apparatus shown is only illustrative, and that the invention can be carried'out by other means.

What I claim as new and desire to secure Letters Patent of the United States is 1. In an internal combustion engine, the

a main shaft to which the piston is connected, a compressor, a receiver in which the working and compressor cylinders are located, said compressor supplying air to the receiver from which it passes into the working cylinder, a rotary valve controlling the action of the compressor, a valve controlling the admission of fuel to the working cylinder, a shaft for actuating the fuel valve, and a second shaft driven by the main shaft which rotates the compressor valve and also the fuel valve shaft.

2. In an internal combustion'engine, the combination of a receiver, a cylinder located in the receiver and receiving air therefrom, a piston, a main shaft to which the piston is connected, a compressor located in and supplying air to the receiver, a rotary valve that controls the passage of air from the compressor to the receiver, a valve controlling the admission of fuel to the cylinder, a cam I shaft for actuating it, a second shaft driven by the main shaft for rotating the compressor valve, and gearing between the cam shaft and said second shaft whereby the former is rotated. 1

3. In an internal combustion engine, the combmation of a receiver, a cylinder mount ed therein and receiving air therefrom, a-

iston for the cylinder, a main shaft connected thereto, a compressor located in and supplying air to the receiver, a valve admitting fuel to the cylinder, a cam shaft for actuating it, a rotary valve controlling the action of the compressor, and. a shaft driven by the main shaft that'rotates the air compressor'valv'e and also the cam shaft.

4. In an internal combustion engine, the combination of a receiver, a cylinder vertically disposed in the receiver and supported thereby, said cylinder receiving air from the receiver,'apiston for the cylinder, a main shaft, a compressor located in and supplying air to the receiver, a valve for the compressor, a shaft for rotating it, gearing between the main and valve shafts, a fuel valve for the cylinder, 'a shaft for actuating it, and gearing between the fuel valve shaft.

5. In an internal combustion engine, the combination of a receiver, a cylinder receiving air therefrom, a piston, a main shaft, a compressor delivering air to the receiver, a rotary valve for controlling the compressor, a shaft which passes loosely through the valve and rotates it, said valveand shaft being capable of mutual lateral adjustment, and gearing between the valve shaft and the main shaft.

In witness whereof, I have hereunto set my hand this 30th day of October 1912.

KARL Faun.

Witnesses-z HANS SOHLEGEL,

Max Brass.

the compressor valve shaft and 

